Container holder for a bicycle



FIG. 1 is a perspective view of a container holder for a bicycle illustrating my new design;

FIG. 2 is a top planar view thereof;

FIG. 3 is a bottom planar view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a front side elevational view thereof; and,

FIG. 7 is a back side elevational view thereof.

The broken lines form no part of the claimed design. 

The ornamental design for a container holder for a bicycle, as shown and described. 